PDF malware analysis — malicious · aea538997e5b90e8

MALICIOUS

PDF

39.2 KB Created: 2020-08-04 07:34:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a39b19c9c8d2e15b65e05e8219dfdb0f SHA-1: a8b8b625ec67cb53455ed330817666db55d29636 SHA-256: aea538997e5b90e8114f2386f2ad3b2c5470c678552c5ddd94ddd95c51a88529

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, including one identified as a malicious redirector. The document body text and embedded links suggest a lure for downloading content, which ultimately leads to the malicious URL. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://ttraff.cc/pify?keyword=spider+man+comic+pdf+download
- http://files.stumpysfabworks.com/uploads/1/3/1/6/131606011/86d8801f973.pdf
- http://files.spilledbeanscoffee.com/uploads/1/3/2/3/132303131/wadumitot.pdf
- http://files.countryrddesigns.com/uploads/1/3/1/4/131453989/0a78d793.pdf
- http://files.ackgs.com/uploads/1/3/2/7/132740836/372498.pdf
- https://cdn.shopi
- https://cdn.shopify.com/s/files/1/0433/8630/6710/files/68034539391.pdf
- https://cdn.shopify.com/s/files/1/0432/3196/9438/files/dijekudogidebejanot.pdf
- https://cdn.shopify.com/s/files/1/0435/6007/5427/files/41817821742.pdf
- https://cdn.shopify.com/s/files/1/0428/2492/5347/files/pedodusajowu.pdf
- https://cdn.shopify.com/s/files/1/0433/6749/7880/files/62461153532.pdf
- https://cdn.shopify.com/s/files/1/0428/1214/5830/files/11459750125.pdf
- https://cdn.shopify.com/s/files/1/0434/1537/1932/files/death_grips_quotes.pdf
- https://cdn.shopify.com/s/files/1/0432/0909/7376/files/how_to_find_youtube_video_id.pdf
- https://cdn.shopify.com/s/files/1/0430/8713/4882/files/38105870729.pdf
- https://cdn.shopify.com/s/files/1/0432/8764/2267/files/zenekoresuvedodo.pdf
- https://cdn.shopify.com/s/files/1/0432/7384/6952/files/82334715275.pdf
- https://cdn.shopify.com/s/files/1/0433/4796/8149/files/vafusenuzejoxuxojipono.pdf
- https://cdn.shopify.com/s/files/1/0440/6493/1992/files/manalijumij.pdf
- https://cdn.shopify.com/s/files/1/0429/3260/0985/files/88920142565.pdf
- https://cdn.shopify.com/s/files/1/0433/9433/4869/files/nidoterutotodesufidumuli.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005a18.bin` `ddd028a8cb278b9fd1bd07dbd306e488b56271500484a71a719f605b217d6977`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A18	5316 bytes
`font_01_sfnt_off00006c2b.bin` `44ec59ff843f418cf4edff7f74808395fbafc2502186706f50d0f6d27d07319b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C2B	10280 bytes

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